Duplicity
Riku stared down at the young man in his bed. Sora, the twin of his roommate, Roxas. The annoying twin, he amended. It wasn't unusual for him to visit, or to stay the night, but this was the first time he'd wound up in the wrong bed.
Sora was much less annoying in sleep, his features smooth and peaceful, but Riku scowled, anyway. Asleep, his sky-blue eyes were shuttered, his sunny, toothy smile absent. Everything about him that bothered Riku was subdued by slumber, except maybe his unruly brown hair. Riku's eyes swept down Sora's tanned skin, all bare except for a bit of sheet that did little to cover his…Riku felt his face heating and turned his attention back to Sora's face.
"Hey," he grunted, poking one of Sora's cheeks. "Wake up. Sora."
Sora made a soft, sleepy noise, his nose scrunching a moment before his eyes fluttered open. "Hmm?" He blinked up at Riku drowsily.
Riku folded his arms across his chest and glared at Sora.
"Oh. Hey, Riku!" His lips stretched into one of his trademark smiles.
"Sora." Riku kept his gaze steady on those blue eyes.
Sora tilted his head, eyes glittering, as if he hadn't just been asleep. "What's up?"
Riku pointedly ignored the way the sheets slid when Sora shifted a leg, so that there was even less covered. "Is there a reason you're naked in my bed?"
Sora's smile dimmed a fraction. "Is there a reason you haven't made a move on me yet?"
Riku dropped his arms to his sides and took a step back, eyebrows shooting up. "What?"
Sora sat up, rolling his eyes. "Come on Riku. Roxas is my twin, remember? We share everything."
Riku paled. What had he told Roxas? He wracked his mind, and found the memory of a recent night drinking with Roxas, confessing how much he wanted to… "Oh." Riku's eyes were wide. "When you say everything, you mean he told you…"
"Exactly what you want to do to me," Sora supplied. He slid out of bed, stalking towards Riku. "So, Riku, what do you say?"
Riku took another, hesitant step backwards, mouth moving but no words coming out.
"Sora, I told you that wasn't going to work." Riku spun to see that Roxas had just entered the room.
"R-roxas!" he sputtered. "Why would you tell him—!"
Roxas raised an eyebrow, mirth clear on his face. "Didn't Sora tell you? We share everything." He reached and caught up one of Riku's hands, and brought it to his mouth. He pressed a butterfly kiss on the inside of Riku's wrist, grinning at the sharp intake of breath it caused. "See, Sora, you have to start slow with Riku."
Riku stiffened as he felt Sora as a heat at his back. A shiver slid down his spine when Sora wound his arms around his waist and pressed his lips against Riku's neck. "Like this?" His voice was low, a breath in Riku's ear, the question directed, perhaps, at both of them.
Roxas hummed and stepped closer, so that Riku was caught between them; Riku felt his pulse speeding and his skin begin to burn. Roxas' fingers found the buttons of Riku's shirt. "What do you think, Riku?" he murmured against Riku's collarbone. He pressed a kiss there. "Does it feel good?"
Sora chose that moment to mouth an earlobe, and Riku's voice came out in something like a whimper. "Y-yes…"
"Riku," Sora's hands were snaking under his shirt, impatient with Roxas' unbuttoning. "You don't mind if we share, do you?" Before Riku could respond, Roxas stood on his toes and captured Riku's lips with his own. "Hey!" Sora protested, "Me, too!"
Riku finally found his limbs obeying him as he turned and claimed Sora's lips in a hungry kiss. "Yes," he panted when the parted. "Sharing is good."
Roxas chuckled behind him, already shucking his own shirt. Riku had no idea what he was in for.